CN106134241B - It is configured to the method and apparatus of the measurement of discovery reference signal in a wireless communication system - Google Patents
It is configured to the method and apparatus of the measurement of discovery reference signal in a wireless communication system Download PDFInfo
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- CN106134241B CN106134241B CN201580015717.6A CN201580015717A CN106134241B CN 106134241 B CN106134241 B CN 106134241B CN 201580015717 A CN201580015717 A CN 201580015717A CN 106134241 B CN106134241 B CN 106134241B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0094—Definition of hand-off measurement parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
A kind of method and apparatus for configuring measurement in a wireless communication system are provided.User equipment (UE) receives reference signal (RS) indicator from network, also, by using only estimating whether measurement report trigger event is satisfied based on the measurement result of the RS indicated by RS indicator.RS indicator can indicate which RS is used for report measurement results.RS indicator can be with the specific reference signal in indicating cell (CRS) or discovery reference signal (DRS).
Description
Technical field
The present invention relates to a kind of wireless communications, and more specifically, are related to a kind of for matching in a wireless communication system
Set the method and apparatus for finding the measurement of reference signal (DRS).
Background technique
Third generation partner program (3GPP) long term evolution (LTE) is the technology for enabling high speed packet communication.Needle
To including being intended to reduce user and provider's cost, improving service quality and expanding and promoted the LTE of covering and power system capacity
Many schemes have been proposed in target.3GPP LTE requires every bit to reduce cost, increase service availability, flexibly using frequency
Band, simple structure, the appropriate power consumption of open interface and terminal are as high level requirement.
It is considered as being hopeful to cope with mobile service outburst using the cell (small cell) of low power nodes, especially
Hot spot for indoor and outdoors scene is disposed.Low power nodes generally mean that it transmits (Tx) power lower than grand node and base
The node for (BS) class of standing, such as pico- and femto e node B (eNB) both of which are applicable in.It is wireless for the land UMTS of evolution
The cell enhancing for being electrically accessed the UMTS Terrestrial Radio Access Network network (E-UTRAN) of (E-UTRA) and evolution will can be concentrated in use
In the additional functional of the enhanced performance in the hot spot region for indoor and outdoors using low power nodes.
Cell is enhanced, in terms of having discussed physical layer.Especially in 3GPP LTE version -12, when in macrocell
When disposing a large amount of cell in covering, the disconnected feature of cell ON/OFF is discussed, in order to reduce because all is small
Cell is switched on the interference being likely to occur, and increases the user grouping handling capacity (UPT) of user equipment (UE).In order to support
Fast transition between the open/close state of cell has studied various technologies, one of them is discovery reference signal (DRS).
It, can be in the method for measurement of the new demand for being configured to DRS as DRS is introduced into.
Summary of the invention
Technical problem
The present invention provides a kind of for being configured to the side of the measurement of discovery reference signal (DRS) in a wireless communication system
Method and device.The present invention provides a kind of for receiving reference signal (RS) indicator and the RS indicated by RS indicator being used only
Method to configure measurement.
Solution to the problem
In an aspect, it provides a kind of in a wireless communication system by the side of user equipment (UE) configuration measurement
Method.This method comprises: receiving reference signal (RS) indicator from network by UE；And by being used only based on by RS indicator
The measurement result of the RS of instruction estimates whether measurement report trigger event is satisfied by UE.
In another aspect, a kind of user equipment (UE) is provided.The UE includes memory, transceiver and processor, is somebody's turn to do
Processor is coupled to memory and transceiver, and is configured to control transceiver and receives reference signal (RS) instruction from network
Symbol, and by using only estimated based on the measurement result of the RS indicated by RS indicator whether measurement report trigger event quilt
Meet.
Beneficial effects of the present invention
The measuring configuration for the specific reference signal of cell (CRS) and DRS can be determined clearly.
Detailed description of the invention
Fig. 1 shows LTE system framework.
Fig. 2 shows the block diagrams of typical E-UTRAN and the framework of typical case EPC.
Fig. 3 shows the block diagram of the user-plane protocol stack of LTE system.
Fig. 4 shows the block diagram of the control plane protocol stack of LTE system.
Fig. 5 shows the example of physical channel structure.
Fig. 6 shows the example of the method for configuring measurement of embodiment according to the present invention.
Fig. 7 shows another example of the method for configuring measurement of embodiment according to the present invention.
Fig. 8 shows another example of the method for configuring measurement of embodiment according to the present invention.
Fig. 9 shows the wireless communication system for realizing the embodiment of the present invention.
Specific embodiment
Technology described below can use in various wireless communication systems, and such as CDMA (CDMA), frequency division are more
Location (FDMA), time division multiple acess (TDMA), orthogonal frequency division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA) etc..CDMA energy
It is enough that the radio technology of (UTRA) or CDMA-2000 are electrically accessed to realize with such as universal terrestrial radio.TDMA can be with all
Such as global system for mobile communications (GSM)/General Packet Radio Service (GPRS)/enhanced data rates for gsm evolution (EDGE)
Radio technology realize.OFDMA can with such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi),
IEEE 802.16 (WiMAX), IEEE 802-20, evolution the radio technology of UTRA (E-UTRA) etc. realize.IEEE
802.16m is IEEE 802.16e evolution, and provides the backward compatibility with the system based on IEEE 802.16.UTRA is
A part of Universal Mobile Telecommunications System (UMTS).Third generation partner program (3GPP) long term evolution (LTE) is using E-
A part of the UMTS (E-UMTS) of the evolution of UTRA.3GPP LTE uses OFDMA in the downlink, and in uplink
It is middle to use SC-FDMA.Advanced LTE (LTE-A) is the evolution of 3GPP LTE.
For the sake of clarity, description below will focus on LTE-A.However, technical characteristic of the invention is not only restricted to this.
Fig. 1 shows LTE system framework.Communication network is widely deployed such as mutual to be provided by IMS and packet data
The various communication services of networking protocol voice (VoIP).
With reference to Fig. 1, LTE system framework includes one or more user equipment (UE；10), the UMTS terrestrial radio of evolution
It is electrically accessed network (E-UTRA) and evolution block core net (EPC).UE 10 refers to the communication equipment carried by user.UE
10 can be fixed or move, and can be referred to as other terms, such as movement station (MS), user terminal (UT),
Subscriber station (SS), wireless device etc..
E-UTRAN includes one or more enode-B (eNB) 20, and multiple UE can be located at a cell
In.ENB 20 provides the endpoint of control plane and user plane to UE 10.ENB 20 is usually the fixed station communicated with UE 10
And other terms can be referred to as, base station (BS), access point etc..Each cell can dispose an eNB 20.
Hereinafter, downlink (DL) indicate from eNB 20 to UE 10 communication, and uplink (UL) indicate from
UE 10 arrives the communication of eNB 20.In DL, transmitter can be a part of eNB 20, and receiver can be UE's 10
A part.In UL, transmitter can be a part of UE 10, and receiver can be a part of eNB 20.
EPC includes mobility management entity (MME) and System Architecture Evolution (SAE) gateway (S-GW).MME/S-GW 30 can
To be positioned in the end of network and be connected to external network.For the sake of clarity, MME/S-GW 30 will herein by
It is simply referred as " gateway ", it should be understood that this entity includes both MME and S-GW.
It includes Non-Access Stratum (NAS) signaling, NAS signaling safety, access layer (AS) safety control that MME is provided to eNB 20
System, for 3GPP access network between ambulant core net (CN) node between signaling, idle mode UE attainability (including
Page the control and execution retransmitted), tracking zone list management (for the UE under idle and active mode), Packet Data Network
Network (PDN) gateway (P-GW) and S-GW selection select, for being switched to 2G or 3G the MME of the switching changed using MME
3GPP accesses Serving GPRS Support Node (SGSN) selection, roaming, certification, the bearer management established including dedicated bearer of network
Function, for public pre-warning system (PWS) (including earthquake and tsunami warning system (ETWS) and commercial mobile alarm system
(CMAS)) the various functions of the support of message transmission.The offer of S-GW host includes that the packet filtering based on each user (passes through example
Such as, deep packet detect), Lawful intercept, the distribution of the UE Internet protocol address (IP), the transfer level packet marking in DL,
The charging of UL and DL service class, gate and rate enhancing, the DL for being based on access point name aggregate maximum bit rate (APN-AMBR)
Rate enhancing.
It can be used for sending customer service or controlling the interface of business.UE 10 is connected to via Uu interface
eNB 20.ENB 20 is connected to each other via X2 interface.Adjacent eNB can have the reticular structure for possessing X2 interface.It is multiple
Node can be connected between eNB 20 and gateway 30 via S1 interface.
Fig. 2 shows the block diagrams of typical E-UTRAN and the framework of typical case EPC.With reference to Fig. 2, eNB 20 can be executed for net
Close 30 selection, during radio resource control (RRC) activation towards the routing of gateway 30, the scheduling of paging message and hair
It send, the scheduling of broadcast channel (BCH) information and transmission, the dynamic allocation in UL and DL the two to the resource of UE 10, eNB
The configuration and offer of measurement, radio bearer control, radio admission control (RAC) and in LTE_ACTIVE state
Connect the function of mobility control.In EPC, and as being indicated above, gateway 30 can execute paging initiation, LTE_
The function of IDLE state management, the encryption of user plane, SAE carrying control and the encryption of NAS signaling and integrity protection.
Fig. 3 shows the block diagram of the user-plane protocol stack of LTE system.Fig. 4 shows the control plane protocol stack of LTE system
Block diagram.Based on three layers below well known open system interconnection (OSI) model in a communications system, in UE and E-UTRAN
Between the layer of radio interface protocol can be classified into first layer (L1), the second layer (L2) and third layer (L3).
Physics (PHY) layer belongs to L1.PHY layer provides information transmission service to higher level by physical channel.PHY layer passes through
Transmission channel is connected to media access control (MAC) layer of the higher level as PHY layer.Physical channel is mapped to transmission letter
Road.By passing the data between transmission channel transmission MAC layer and PHY layer.Between different PHY layers, that is, in transmission equipment side
Between PHY layer and the PHY layer of receiving side, data are transmitted via physical channel.
MAC layer, radio link control (RLC) layer and Packet Data Convergence Protocol (PDCP) layer belong to L2.MAC layer
The rlc layer of the higher level as MAC layer is provided services to via logic channel.MAC layer provides data biography on logical channels
Take business.Rlc layer supports the transmission with the data of reliability.Meanwhile rlc layer is realized by the functional block inside MAC layer
Function.In this case, rlc layer can be not present.The function of PDCP layers of offer header-compressed, header compression function are reduced
Unnecessary control information enables the data sent by using the IP grouping of such as IPv4 or IPv6 to have relatively
It is efficiently transmitted on the radio interface of small bandwidth.
Radio resource control (RRC) layer belongs to L3.Rlc layer is located at the lowest portion of L3, and only in control plane
In be defined.Rrc layer control and the configuration of radio bearer (RB) reconfigure and discharge related logic channel, transmission
Channel and physical channel.RB indicates to provide the service of the L2 for the data transmission between UE and E-UTRAN.
With reference to Fig. 3, RLC and MAC layer (being terminated in the enb on network side) can execute such as scheduling, autonomous retransmission
It requests (ARQ) and mixes the function of ARQ (HARQ).PDCP layers (being terminated in the eNB on network side) can execute such as
The user-plane function of header-compressed, integrity protection and encryption.
With reference to Fig. 4, RLC and MAC layer (being terminated in the eNB on network side) can execute the identical function for controlling plane
Energy.Rrc layer (being terminated in the eNB on network side) can execute such as broadcast, paging, RRC connection management, RB control, move
The function of dynamic sexual function and UE measurement report and control.NAS control protocol is (by end in the MME of the gateway on network side
Can only) execute such as the SAE bearer management of the signaling between gateway and UE, certification, LTE_IDLE mobility processing,
Paging in LTE_IDLE is initiated and the function of security control.
Fig. 5 shows the example of physical channel structure.Physical channel is by radio resource between the PHY layer and eNB of UE
Transmit signaling and data.Physical channel is made of multiple subframes in time domain and multiple subcarriers in frequency domain.A son of 1ms
Frame is made of multiple symbols in time domain.The special symbol of the subframe of first symbol of such as subframe can be used for physical down
Link control channel (PDCCH).The resource that PDCCH carrying dynamically distributes, such as Physical Resource Block (PRB) and modulation and compiling
Scheme (MCS).
DL transmission channel includes the broadcast channel (BCH) that be used to send system information, the paging letter that be used to page UE
Road (PCH), be used to send customer service or control signal downlink sharied signal channel (DL-SCH), be used for multicast or
The Multicast Channel (MCH) of person's broadcast services transmission.DL-SCH by change modulates, compiling and transmission power and dynamic and
Semi-persistent resource is distributed to support HARQ, dynamic link adaptation.DL-SCH can also broadcast to enable entire cell and wave beam
The use of figuration.
UL transmission channel includes being normally used for the random access channel (RACH) to the initial access of cell, for sending
Customer service or the uplink shared channel (UL-SCH) etc. for controlling signal.UL-SCH passes through variation transmission power and can
Can modulation and compiling support HARQ and dynamic link adaptation.UL-SCH can also be to enable the use of wave beam forming.
According to the type of the information sent, logic channel is classified into the control channel for transmitting control plane information
With the Traffic Channel for transmitting user plane information.That is, the different data transmission service to being provided by MAC layer, defines one
Group logical channel type.
Control channel is only applied to control the transmission of plane information.It include broadcast control by the control channel that MAC layer provides
Channel (BCCH) processed, Paging Control Channel (PCCH), common control channel (CCCH), multicast control channel (MCCH) and dedicated
Control channel (DCCH).BCCH is the downlink channel for broadcast system control information.PCCH is transmission paging information
It downlink channel and is used when network does not know the location cell of UE.It is connect by not having with the RRC of network
UE come using CCCH.MCCH is used to send from the multicast broadcast multimedia service of network (MBMS) control information
To the point-to-multipoint downlink channel of UE.DCCH be between UE and network send dedicated control information by connecting with RRC
Point-to-point two-way channel used in the UE connect.
Traffic Channel is only applied to the transmission of user plane information.It include dedicated service by the Traffic Channel that MAC layer provides
Channel (DTCH) and Logical Traffic Channels (MTCH).DTCH is point-to-point channel, is exclusively used in biography of the UE for user information
It send and can exist in uplink and downlink the two.MTCH is for will send out from the business datum of network
It is sent to the point-to-multipoint downlink channel of UE.
Uplink connection between logic channel and transmission channel includes DCCH, the energy that can be mapped to UL-SCH
It is enough mapped to the DTCH of UL-SCH and the CCCH of UL-SCH can be mapped to.Between logic channel and transmission channel
Downlink connection include can be mapped to the BCCH of BCH or DL-SCH, the PCCH that PCH can be mapped to, can be by
It is mapped to the DCCH of DL-SCH and the DTCH of DL-SCH can be mapped to, MCCH, Yi Jineng of MCH can be mapped to
Enough it is mapped to the MTCH of MCH.
RRC state indicates whether that the rrc layer of UE is logically connected to the rrc layer of E-UTRAN.RRC state can be drawn
It is divided into two different states of such as RRC idle state (RRC_IDLE) and RRC connection status (RRC_CONNECTED).?
In RRC_IDLE, UE can receive the broadcast of system information and paging information simultaneously UE it is specified configured by NAS it is discrete
It receives (DRX), and UE has been dispensed on the mark (ID) for uniquely identifying UE in tracing area and can execute public
Land mobile network (PLMN) selection and cell reselection.In addition, in RRC_IDLE, in the enb without storage RRC context.
In RRC_CONNECTED, UE has E-UTRAN RRC connection and context in E-UTRAN, so that by data
It is sent to eNB and/or receives data from eNB and become possible.In addition, UE can be to eNB reporting channel quality information and feedback letter
Breath.In RRC_CONNECTED, E-UTRAN knows cell belonging to UE.Therefore, network can transmit data to UE and/
Or data are received from UE, the mobility that network can control UE (switches and arrives the GSM with network assisted cell variation (NACC)
Cell change sequence between the radio access technologies (RAT) of EDGE radio access network (GERAN)), and network can be held
Cell measurement of the row for neighboring community.
In RRC_IDEL, UE specifies paging DRX cycle.Specifically, UE is in the specific of the specific paging DRX cycle of each UE
Paging occasion monitors paging signal.Paging occasion is paging signal by the time interval during sending.UE has seeking for its own
Exhale opportunity.Paging message is sent in all cells for belong to identical tracing area.If UE is from a tracing area
(TA) it is moved to another TA, then UE sends network for tracking area update (TAU) message to update its position.
In 3GPP LTE, in order to which the one aspect of cell enhancing has described discovery reference signal (DRS) again.
Cell in off state can send the DRS that cell is found for UE.In order to allow UE received immediately when cell
The data grouping to be sent when being converted on state, in DRS, cell can be carried for being converted to conducting in small cell
Information necessary to the process that should have been executed before state.It has discussed and how to have sent DRS, which information is included in
In DRS and/or how UE measures DRS.
Describe measurement.It can be made to refer to 5.5 trifles of 3GPP TS 36.331V12.0.0 (2013-12).UE according to by
The measuring configuration that E-UTRAN is provided carrys out reporting measurement information.E-UTRAN is used by means of dedicated signaling, i.e.
RRCConnectionReconfiguration message is matched to provide the measurement for the UE that may be applied in RRC_CONNECTED
It sets.
UE can be requested to execute following kind of measurement:
Measurement in frequency: the measurement under downlink carrier frequency at serving cell.
Inter-frequency measurements: at the frequency for being different from any one of downlink carrier frequency of serving cell
Measurement.
It is measured between the RAT of-UTRA frequency.
It is measured between the RAT of-GERAN frequency.
- CDMA2000 high speed packet data (HRPD) or CDMA2000 single carrier radio transmission technique (1xRTT) frequency
RAT between measure.
The measuring configuration includes following parameter:
1. measurement object: UE should execute the object of measurement to it.
It is directed in frequency and inter-frequency measurements, measurement object is single E-UTRA carrier frequency.It is related to this carrier frequency
Connection, E-UTRAN can configure the list of cell specific offset and the list of cell blacklist.In event evaluation or measurement report
Cell blacklist is not considered.
It is measured for UTRA between RAT, measurement object is one group of cell in single UTRA carrier frequency.
It is measured for GERAN between RAT, measurement object is one group of GERAN carrier frequency.
It is measured for CDMA2000 between RAT, measurement object is one group small in single (HRPD or 1xRTT) carrier frequency
Area.
Using some measurements of above-mentioned measurement object, it is only concerned about single subdistrict, such as is used to report neighbor cell system
The measurement of information, main plot (PCell) UE Rx-Tx time difference.
2. report configuration: report configuration list, wherein each report configuration with following by being formed:
Report criterion: triggering UE sends the criterion of measurement report.This can be periodically or single event describes.
Reporting format: UE includes quantity in measurement report and related information (for example, the number of the cell to be reported
Mesh).
3. measurement mark: measurement identification list, wherein each measurement is identified a measurement object and a report configuration
Link.It can will be more than that a measurement object is linked to identical report configuration, and will be more than by configuring multiple measurement marks
One report configuration is linked to identical measurement object.The measurement identifies the reference number being used as in measurement report.
4. quantity configuration: one quantity configuration of each RAT type configuration.Quantity configuration definition is used for the measurement type
All event evaluations and the measurable amount of correlation report be associated with filtering.It can one filter of each measurable amount configuration.
5. measurement gap: UE can be used for executing the period of measurement, i.e., unscheduled (UL, DL) transmission.
E-UTRAN only configures single measurement object for given frequency, i.e., can not utilize different relevant parameters, such as
Different offsets and/or blacklist configures two or more measurement objects for identical frequency.E-UTRAN can for example pass through use
Different threshold values configures two report configurations to configure multiple examples of similar events.
UE keeps single measurement object list, single report configuration list and individually measures identification list.Measurement object
List includes the specified measurement object of each RAT type, may include object in frequency (object for corresponding to service frequency),
Object between object and RAT between frequency.Similarly, report configuration list includes report configuration between E-UTRA and RAT.It can will be any
Measurement object is linked to any report configuration of identical RAT type.Some report configurations can not be linked to measurement object.Together
Sample, some measurement objects can not be linked to report configuration.
Measurement process distinguishes following kind of cell:
1. these are PCell and one or more supplementary cells (SCell) to serving cell-, if poly- for carrier wave is supported
Close the UE configuration of (CA).
2. the cell-listed these be the cell listed in measurement object.
3. the cell-detected these be unlisted in measurement object but in the carrier frequency as indicated by measurement object
The cell detected in rate by UE.
For E-UTRA, UE measurement and report services cell, the cell listed and the cell detected.For between RAT
UTRA, UE measure and report the cell listed and optionally small in the range of report is allowed by E-UTRAN for it
Area.It is measured for GERAN between RAT, UE and reports the cell detected.It measures and reports for CDMA2000 between RAT, UE and list
Cell.For UTRA between RAT and CDMA2000, UE is surveyed in the cell detected for the purpose of self-organizing network (SON)
It measures and also reports.
E-UTRAN applies following process:
In order to ensure there is measConfig whenever UE comprising the m easObject for each service frequency；
At most one measurement mark is configured using having the report configuration for the purpose for being configured to reportCGI；
It is directed to service frequency, the E-UTRA being arranged in corresponding measObject according to reception/transmission wave band is used for
Absolute Radio Frequency Channel number (EARFCN)；
UE is answered:
If 1 > the measConfig that receives includes measObjectToRemoveList:
2 > execute measurement object removal process；
If 1 > the measConfig that receives includes measObjectToAddModList:
2 > execution measurement object adds/modification process；
If 1 > the measConfig that receives includes reportConfigToRemoveList:
2 > execute report configuration removal process；
If 1 > the measConfig that receives includes reportConfigToAddModList:
2 > execution report configuration adds/modification process；
If 1 > the measConfig that receives includes quantityConfig:
2 > number of executions configuration process；
If 1 > the measConfig that receives includes measIdToRemoveList:
2 > execute measurement mark removal process；
If 1 > the measConfig that receives includes measIdToAddModList:
2 > execute measurement mark addition/modification process；
If 1 > the measConfig that receives includes measGapConfig:
2 > execute measurement gap configuration process；
If 1 > the measConfig that receives includes s-Measure；
2 > the parameter s-Measure in VarMeasConfig is arranged to as indicated by the value of the s-Measure received
Reference Signal Received Power (RSRP) range minimum；
If 1 > the measConfig that receives includes preRegistrationInfoHRPD:
2 > preRegistrationInfoHRPD is transferred to the upper layer CDMA2000；
If 1 > the measConfig that receives includes speedStatePars:
2 > by the speedStatePars's being configured to receive of the parameter speedStatePars in VarMeasConfig
Value；
For measurement mark removal, UE is answered:
1 > for including being received in a part as the current UE configuration in VarMeasConfig
Each measId in measIdToRemoveList:
2>
There is the entry of matching measId from the measIdList removal in VarMeasConfig；
If 2 > it is included that the measurement report entry of this measId is used for from VarMeasReportList removal；
2 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
If measIdToRemoveList includes any measId value for not being a part that current UE configures, UE is not
Think that message is wrong.
Addition/modification is identified for measurement, only when corresponding measurement object, corresponding report configuration and respective numbers configure quilt
When configuration, E-UTRAN just configures measId.UE is answered:
1 > for including each measId in the measIdToAddModList received:
2>
If having the entry of matching measId to be present in the measIdList in VarMeasConfig:
3 > value that receives for this measId is used in replace entry；
2 > otherwise:
New entry of the 3 > addition for this measId in VarMeasConfig；
2 > the measurement report entry for being used for this measId is removed from VarMeasReportList, if including；
2 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
If 2 > in reportConfig associated with this measId triggerType be configured to it is periodic and
Purpose is configured to reportCGI:
If 3 > measObject associated with this measId is related to E-UTRA:
4>
If si-RequestForHO is included in reportConfig associated with this measId:
5 > to be configured to the timer value of 150ms for this measId start timer T321；
4 > otherwise:
5 > to be configured to 1 second timer value for this measId start timer T321；
3 > otherwise, if measObject associated with this measId is related to E-UTRA:
4>
If si-RequestForHO is included in reportConfig associated with this measId:
5 > it is directed to UTRA FDD, timer T321 is started with the timer value for being configured to 2 seconds for this measId；
5 > it is directed to UTRA TDD, timer T321 is started with the timer value for being configured to [1 second] for this measId；
4 > otherwise:
5 > to be configured to 8 seconds timer values for this measId start timer T321；
3 > otherwise:
4 > to be configured to 8 seconds timer values for this measId start timer T321；
It is removed for measurement object, UE is answered:
1 > for including being received in a part as the current UE configuration in VarMeasConfig
Each measObjectId in measObjectToRemoveList:
2 > entry with matching measObjectId is removed from the measObjectList in VarMeasConfig；
2 > if any, it is associated with this measObjectId from the measIdList removal in VarMeasConfig
All measId；
If 2 > measId is removed from measIdList:
If 3 > it is included that the measurement report entry of this measId is used for from VarMeasReportList removal；
3 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
If measObjectToRemoveList include be not current UE configuration a part it is any
MeasObjectId value, then UE is not considered as that message is wrong.
For measurement object addition/modification, UE is answered:
1>
For including each measObjectId in the measObjectToAddModList received:
2 > if there is the entry of matching measObjectId to be present in the measObjectList in VarMeasConfig
In, then it is directed to this entry:
3 > entry is replaced with the value received for this measObject, except field cellsToAddModList,
BlackCellsToAddModList, cellsToRemoveList, blackCellsToRemoveList and
Except measSubframePatternConfigNeigh；
If 3 > the measObject that receives includes cellsToRemoveList:
4 > for including each cellIndex in cellsToRemoveList:
5 > entry with matching cellIndex is removed from cellsToAddModList；
If 3 > the measObject that receives includes cellsToAddModList:
4 > for including each cellIndex value in cellsToAddModList:
5 > if there is the entry of matching cellIndex to be present in cellsToAddModList:
6 > with the value received for this cellIndex replace entry；
5 > otherwise:
6 > the new entry for the cellIndex for being used to receive is added to cellsToAddModList；
If 3 > the measObject that receives includes blackCellsToRemoveList:
4 > for including each cellIndex in blackCellsToRemoveList:
5 > entry with matching cellIndex is removed from blackCellsToAddModList；
For include be related to cell overlapping range blackCellsToRemoveList in each cellIndex,
Only when all cell index comprising cell are removed, which is just removed from the blacklist of cell.
If 3 > the measObject that receives includes blackCellsToAddModList:
4 > for including each cellIndex in blackCellsToAddModList:
5>
If having the entry of matching cellIndex to be included in blackCellsToAddModList:
6 > with the value received for this cellIndex replace entry；
5 > otherwise
6>
The new entry for the cellIndex for being used to receive is added to blackCellsToAddModList；
3>
If the measObject received includes measSubframePatternConfigNeigh:
4 > measSubframePatternConfigNeigh in VarMeasConfig is configured to receive to the value of field
3 > if any, for related to this measObjectId in the measIdList in VarMeasConfig
Each measId of connection:
If 4 > it is included that the measurement report entry of this measId is used for from VarMeasReportList removal；
4 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
2 > otherwise:
3 > the new entry for the measObject for being used to receive is added in VarMeasConfig
measObjectList；
It is removed for report configuration, UE is answered:
1 > for receiving in a part as the current UE configuration in VarMeasConfig
The each reportConfigId for including in reportConfigToRemoveList:
2 > item with matching reportConfigId is removed from the reportConfigList in VarMeasConfig
Mesh；
2 > if any, it is associated with reportConfigId from the measIdList removal in VarMeasConfig
All measId；
If 2 > measId is removed from measIdList:
If 3 > it is included that the measurement report entry of this measId is used for from VarMeasReportList removal；
3 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
If reportConfigToRemoveList include be not current UE configuration a part it is any
ReportConfigId value, then UE is not considered as that message is wrong.
For report configuration addition/modification, UE is answered:
1 > for including each reportConfigId in the reportConfigToAddModList received:
2 > if there is the entry of matching reportConfigId to be present in VarMeasConfig
In reportConfigList, then this entry is directed to:
3 > with the value received for this reportConfig replace entry；
3 > if any, for this reportConfigId phase in the measIdList in VarMeasConfig
Associated each measId:
If 4 > it is included that the measurement report entry of this measId is used for from VarMeasReportList removal；
4 > dwelling period reports timer or timer T321 (being whichsoever currently running), and is directed to this measId
It is arranged related information (such as timeToTrigger)；
2 > otherwise:
3 > the new entry for the reportConfig for being used to receive is added in VarMeasConfig
reportConfigList；
Table 1 shows the example of MeasConfig information element (IE), the specified measurement that will be executed by UE, and covers frequency
Mobility and the configuration in gap is measured between RAT in rate, between frequency.
<table 1>
Table 2 shows the example of ReportConfigEUTRA IE, specifies the triggering for E-UTRAN measurement report event
Criterion.E-UTRAN measurement report event is labeled with the AN with the N equal to 1,2 etc..E-UTRAN measurement report event
It is as follows.
Event A1: service becomes better than absolute threshold；
Event A2: service becomes than absolute threshold value difference；
Event A3: neighbours become the offset better than PCell；
Event A4: neighbours become better than absolute threshold；
Event A5:PCell becomes than 1 difference of absolute threshold and neighbours become better than another absolute threshold 2.
Event A6: neighbours become greater than the offset of SCell.
<table 2>
When DRS is introduced into, UE is configured to frequency layer and executes measurement based on CRS and based on DRS's
Both measurements.In this case, it is obtained from the measurement result of the measurement acquisition based on CRS and from the measurement based on DRS
Measurement result can be different.Therefore, network should be able to know whether that the measurement result reported is with CRS or DRS
Based on.However, being impossible according to the prior art, because there is only a measurement objects for a frequency.
To solve the above-mentioned problems, the method for the measurement for being configured to DRS of embodiment according to the present invention is described.
Fig. 6 shows the example of the method for configuring measurement of embodiment according to the present invention.Implementation according to the present invention
Example, may be configured to the individual measurement report of CRS and DRS.
In the step s 100, UE receives RS indicator.By network, each measurement report trigger event can configure RS and refer to
Show symbol.RS indicator can be included in report configuration and can indicate one in CRS or DRS.
In step s 110, whether UE is passed through full using only being estimated based on the measurement result of the RS indicated by RS indicator
Sufficient measurement report trigger event.That is, although there is UE both CRS and DRS by measurement for identical cell to obtain
Measurement result, but when whether measurement report trigger event is satisfied for estimation, UE, which is used only, to be referred to by measuring by RS indicator
Measurement result acquired in the RS shown.Specifically, although UE has the measurement based on DRS for being used for identical cell by executing
Acquired measurement result, if the RS indicator instruction received together with corresponding measurement report trigger event from network
CRS, then when whether corresponding measurement report trigger event is satisfied for estimation, UE is obtained using only by executing the measurement based on CRS
The measurement result taken.Alternatively, although UE has by executing measurement acquired in the measurement based on CRS for identical cell
As a result, if received together with corresponding measurement report trigger event from network RS indicator instruction DRS, when estimation whether
UE is used only by executing measurement result acquired in the measurement based on DRS when corresponding measurement report trigger event is satisfied.
For respectively including the measurement report trigger event of two measurement results of two cells, for example, event A3, A5,
A6 and B2, two RS indicators can be configured.In this case, although UE has through measurement for identical small
The measurement result that another RS in area is obtained, when whether measurement report trigger event is satisfied for estimation, UE can Jin Shiyong pass through
Measurement is obtained by the RS that the first RS indicator for first community and second community and the 2nd RS indicator indicate respectively
Measurement result.If the first RS indicator indicates that CRS, UE can be used only by executing for first community based on CRS
Measurement acquired in measurement result.If the first RS indicator indicates that DRS, UE can be used only and be used for first by executing
The measurement result that the measurement based on DRS of cell obtains.If the 2nd RS indicator indicate CRS, UE can Jin Shiyong pass through
Execute measurement result acquired in the measurement based on CRS for second community.If the 2nd RS indicator indicates DRS, UE
Using only by executing measurement result acquired in the measurement based on DRS for second community.
Alternatively, the first RS indicator that can be applied to first community can be omitted and implicitly indicate by executing base
The measurement result acquired in the measurement of CRS is used for first community.Therefore, a RS can be only configured to UE for second community
Indicator.If RS indicator indicates that the measurement based on CRS for being used for second community by executing can be used only in CRS, UE
Acquired measurement result.If RS indicator indicates that DRS, UE are used only by executing for second community based on DRS
Measurement acquired in measurement result.In the above description, first community can be the serving cell configured to UE, that is,
PCell or SCell, and second community can be adjacent cell.
Fig. 7 shows another example of the method for configuring measurement of embodiment according to the present invention.
In step s 200, it is assumed that there are three adjacent cells near UE.It is assumed that the first and second adjacent cells
It is the cell (cell) for capableing of conduction and cut-off.It is assumed that first community be it is in the conductive state and send CRS and DRS this two
Person.It is assumed that second community is in the conductive state and only sends DRS.It is assumed that three adjacent cells be place can not be connected/
The cell of cut-off, therefore three adjacent cells are in the conductive state always and only send CRS.
In step S210, UE receives measurement and report configuration from serving cell.Therefore, UE is configured to execute between frequency
Measurement.It is assumed that the measurement object being configured is frequency B and two report configurations are linked with measurement object.It is further assumed that
In first report configuration, measurement report trigger event is arranged to A3, and RS indicator indicates DRS.It is further assumed that
In two report configurations, measurement report trigger event is also set to A3 and RS indicator instruction CRS.
In step S220, UE starts to execute the measurement for being used for frequency B.For the first neighboring community, UE, which is executed, is based on DRS
Measurement and measurement based on CRS.Therefore UE can obtain two kinds of measurement result from the first neighboring community, be base
Measurement result in CRS and the measurement result based on DRS.For the second neighboring community and third neighboring community, UE is only held respectively
Measurement of the row based on DRS and the measurement based on CRS.
In step S230, for the measurement based on DRS in the first neighboring community, configured in the first report configuration
A3 event be implemented.In step S240, for the measurement based on CRS in the first neighboring community, match in the second report
The A3 event for setting middle configuration is not implemented.However, the realization of the A3 event configured in the first configuration is kept, because
The measurement result of DRS is based only upon involved in one report configuration.
In step s 250, during timeToTrigger, for the measurement based on DRS in the first neighboring community,
Realize the A3 event configured in the first report configuration.Therefore, UE initiates measurement report procedure.The survey to be reported to serving cell
Measuring result includes being based only upon the measurement result of DRS.
Alternatively, according to another embodiment of the present invention, it may be configured to the individual measurement object of CRS and DRS.
For identical frequency, two measurements can be configured, one of those is the Class1 measurement object for the measurement based on CRS,
And the other is the type 2 for the measurement based on DRS measures.Class1 measurement object can be existing measurement object simultaneously
And 2 measurement object of type can be the measurement object of new type.Type indicator may indicate whether that measurement object is for base
In the existing measurement object of the measurement of CRS or the measurement object of the new type for the measurement based on DRS.When UE is configured to
Signal transmission types indicator can be reinstated with measurement object one when executing measurement.UE can be executed for being measured by Class1
Object configuration frequency the measurement based on CRS, and execute for by 2 measurement object of type configure frequency based on
The measurement of DRS.For example, if frequency is configured by Class1 measurement object and is not configured by 2 measurement object of type
To UE, then for the frequency, UE can execute the measurement based on CRS and cannot execute the measurement based on DRS.If passed through
Both 2 measurement objects of Class1 measurement object and type configure frequency to UE, then UE can execute for the frequency based on CRS's
Measurement and the measurement based on DRS.
Fig. 8 shows another example for being used to configure measurement of embodiment according to the present invention.
In step S300, it is assumed that there are adjacent cells on the frequency B near UE.It is assumed that adjacent cell is can
The cell and cell of conduction and cut-off are in the conductive state.Therefore cell sends DRS and CRS.
In step s310, UE receives measurement and report configuration from serving cell.Therefore, UE is configured to execute between frequency
Measurement.It is assumed that the Class1 measurement object being configured is frequency B.
In step s 320, UE starts to execute the measurement based on CRS for frequency B.UE is obtained from neighboring community and is measured
As a result, still the result is not carried out corresponding measurement report trigger event.UE can not detect the DRS of neighboring community.
In step S330, UE receives instruction as the frequency B of 2 measurement object of the type measurement being added and reports again
Configuration.
In step S340, UE executes both the measurement based on CRS and the measurement based on DRS to frequency B.
In step S350, the measurement result that the measurement based on DRS obtains is executed in adjacent cell and is realized accordingly
Measurement report trigger event.Then, UE is based only upon DRS to report the result including measurement result.In step S360, adjacent
Cell on execute measurement result acquired in the measurement based on CRS and realize corresponding measurement report trigger event.Then, UE is only
The result including measurement result is reported based on CRS.
Fig. 9 shows the wireless communication system for realizing the embodiment of the present invention.
ENB 800 may include processor 810, memory 820 and radio frequency (RF) unit 830.Processor 810 can be matched
It is set to function, process and/or the method for realizing the proposition described in the present specification.The layer of radio interface protocol can located
It is realized in reason device 810.Memory 820 is operationally coupled with processor 810, and stores for operation processing device 810
Various information.Transceiver 830 is operationally coupled with processor 810, and sends and/or receive radio signal.
UE 900 may include processor 910, memory 920 and RF unit 930.Processor 910 can be configured as reality
Function, process and/or the method for present proposition described in this specification.The layer of radio interface protocol can be in processor
It is realized in 910.Memory 920 is operationally coupled with processor 910, and is stored for each of operation processing device 910
Kind information.Transceiver 930 is operationally coupled with processor 910, and sends and/or receive radio signal.
Processor 810,910 may include specific integrated circuit (ASIC), other chipsets, logic circuit and/or data
Processing equipment.Memory 820,920 may include read-only memory (ROM), random access memory (RAM), flash memory,
Memory card, storage medium and/or other storage equipment.Transceiver 830,930 may include baseband circuit to handle radio frequency letter
Number.When embodiment is implemented in software, the module (example for the function that the technology being described herein as can be described herein as with execution
Such as, process, function etc.) Lai Shixian.Module can be stored in memory 820,920, and be held by processor 810,910
Row.Memory 820,920 can be realized in processor 810,910 or in the external of processor 810,910, realize in outside
In the case of, memory 820,920 via the various devices being such as known in the art be communicatively coupled to processor 810,
910。
In view of the exemplary system being described herein as, describing by reference to several flow charts can be with according to disclosed theme
The method of realization.For purposes of simplicity, these methods are shown and described as a series of step or module, it is clear that
And understanding, theme claimed are not limited by the sequence of step or module because some steps can with here
Description and the different sequence described occur simultaneously with other steps.In addition, it should be appreciated by those skilled in the art that flowing
The step of illustrating in journey figure is not exclusive, and may include other steps, or one or more in example flow diagram
A step can be deleted, without affecting the scope of the disclosure and spirit.
Claims (9)
1. method of the one kind for being executed in a wireless communication system by user equipment (UE), which comprises
Execute the measurement based on the specific reference signal of cell (CRS) for being used for serving cell；
Execute the measurement based on discovery reference signal (DRS) for the serving cell；
The information in relation to reference signal (RS) is received from network by the UE, wherein one in information notice CRS or DRS
It is a；
When the information in relation to the RS notifies the CRS, only to the result of measurement of the network report based on the CRS；
And
When the information in relation to the RS notifies the DRS, only to the result of measurement of the network report based on the DRS.
2. according to the method described in claim 1, wherein, which RS is the information in relation to the RS notify be used to report measurement
As a result.
3. according to the method described in claim 1, wherein, each measurement report trigger event configures the information in relation to the RS.
4. according to the method described in claim 1, wherein, the information in relation to the RS is received via report configuration.
5. according to the method described in claim 1, wherein, the RS indicator includes the first RS indicator for first community
With the 2nd RS indicator for second community.
6. a kind of user equipment (UE), the UE include:
Memory；
Transceiver；And
Processor, the processor is coupled to the memory and the transceiver, and is configured to:
The measurement based on the specific reference signal of cell (CRS) for being used for serving cell is executed,
The measurement based on discovery reference signal (DRS) for serving cell is executed,
It controls the transceiver and receives the information in relation to reference signal (RS) from network, wherein in information notice CRS or DRS
One；
When the information in relation to the RS notifies the CRS, only to the result of measurement of the network report based on the CRS；
And
When the information in relation to the RS notifies the DRS, only to the result of measurement of the network report based on the DRS.
7. UE according to claim 6, wherein which RS is the information in relation to the RS notify be used to report the survey
Measure result.
8. UE according to claim 6, wherein each measurement report trigger event configures the information in relation to the RS.
9. UE according to claim 6, wherein receive the information in relation to the RS via report configuration.
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| US201461971541P | 2014-03-28 | 2014-03-28 | |
| US61/971,541 | 2014-03-28 | ||
| PCT/KR2015/003097 WO2015147607A1 (en) | 2014-03-28 | 2015-03-30 | Method and apparatus for configuring measurement for discovery reference signal in wireless communication system |
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| US (1) | US10560858B2 (en) |
| EP (1) | EP3132631B1 (en) |
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| WO2017039166A1 (en) * | 2015-09-01 | 2017-03-09 | 엘지전자 주식회사 | Method for reporting channel state and apparatus therefor |
| WO2017103756A1 (en) * | 2015-12-18 | 2017-06-22 | Nokia Technologies Oy | Method for triggering freestanding radio resource control report |
| US11811562B2 (en) | 2017-02-03 | 2023-11-07 | Interdigital Patent Holdings, Inc. | Interference reduction for reference symbols in URLLC/eMBB multiplexing |
| WO2019004667A1 (en) * | 2017-06-27 | 2019-01-03 | Lg Electronics Inc. | Method and apparatus for reporting measurement result |
| BR112020002844B1 (en) * | 2017-08-11 | 2022-01-18 | Telefonaktiebolaget Lm Ericsson (Publ) | WIRELESS DEVICE, NETWORK NODE AND METHODS PERFORMED BY THEM FOR HANDLING MEASUREMENTS IN A SET OF CELLS |
| CN111758277B (en) * | 2018-02-20 | 2024-01-26 | 瑞典爱立信有限公司 | SFTD and ANR specific reporting |
| CN110557792B (en) | 2018-06-04 | 2021-01-08 | 维沃移动通信有限公司 | Cell management method, trigger condition configuration method and related equipment |
| US11963055B2 (en) | 2021-05-10 | 2024-04-16 | Apple Inc. | Neighbor cell measurements |
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| WO2011082907A1 (en) | 2010-01-11 | 2011-07-14 | Telefonaktiebolaget L M Ericsson (Publ) | Measurement event evaluation for triggering measurement reports |
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| WO2012141421A1 (en) | 2011-04-14 | 2012-10-18 | (주)팬택 | Device and method for transmitting/receiving channel state information in a communication system |
| EP2829108A4 (en) * | 2012-03-19 | 2015-04-29 | Huawei Tech Co Ltd | System and method for measurement report triggering configuration for multiple point communication measurement set management |
| EP2876926B1 (en) | 2012-07-23 | 2019-07-03 | LG Electronics Inc. | Method for reporting a combined measurement in wireless communication system and apparatus for supporting same |
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2015
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- 2015-03-30 EP EP15768236.0A patent/EP3132631B1/en not_active Not-in-force
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| WO2013051864A1 (en) * | 2011-10-04 | 2013-04-11 | Samsung Electronics Co., Ltd. | Apparatus and method for radio link monitoring in a wireless communication system |
| CN104170434A (en) * | 2013-01-18 | 2014-11-26 | 华为技术有限公司 | Method, apparatus and communication node for measurement |
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| EP3132631A4 (en) | 2017-08-23 |
| US10560858B2 (en) | 2020-02-11 |
| EP3132631A1 (en) | 2017-02-22 |
| CN106134241A (en) | 2016-11-16 |
| EP3132631B1 (en) | 2018-09-12 |
| WO2015147607A1 (en) | 2015-10-01 |
| US20170086087A1 (en) | 2017-03-23 |
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